/*
 * Copyright 2007 Rob Nielsen
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * 	http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.googlecode.proxymatic.apps.autoboundary.handlers;

import com.googlecode.proxymatic.apps.autoboundary.AutoboundaryLookup;
import com.googlecode.proxymatic.core.handlers.method.CheckingParameterModifier;

public class AutoboundaryReplaceWithAutoParameterTypeModifier implements CheckingParameterModifier {
    private final AutoboundaryLookup autoboundaryLookup;
    private final AutoboundaryWrapperUnwrapper autoboundaryWrapperUnwrapper;

    public AutoboundaryReplaceWithAutoParameterTypeModifier(AutoboundaryLookup autoboundaryLookup, AutoboundaryWrapperUnwrapper autoboundaryWrapperUnwrapper) {
        this.autoboundaryLookup = autoboundaryLookup;
        this.autoboundaryWrapperUnwrapper = autoboundaryWrapperUnwrapper;
    }

    public boolean supportsParameterTypes(Class[] fromParameterTypes, Class[] toParameterTypes) {
        for (int i = 0; i < toParameterTypes.length; i++) {
            Class autoboundaryClass = toParameterTypes[i];
            Class realClass = fromParameterTypes[i];
            if (autoboundaryLookup.isAutoboundaryClass(autoboundaryClass) &&
                    !autoboundaryLookup.isAutoboundaryPair(autoboundaryClass, realClass)) {
                return false;
            }
//            autoboundaryWrapperUnwrapper.ensureHandled(autoboundaryClass, fromParameterTypes[i]);
        }
        return true;
    }

    public Object[] modifyParameters(Object[] fromParameters, Class[] fromParameterTypes, Class[] toParameterTypes) {
        if (fromParameters != null) {
            for (int i = 0; i < fromParameters.length; i++) {
                if (autoboundaryLookup.isAutoboundaryPair(toParameterTypes[i], fromParameterTypes[i])) {
                    fromParameters[i] = autoboundaryWrapperUnwrapper.getObject(toParameterTypes[i], fromParameterTypes[i], fromParameters[i]);
                }
            }
        }
        return fromParameters;
    }
}
